Hybrid gold nanoparticle-reduced graphene oxide nanosheets as active catalysts for highly efficient reduction of nitroarenes

被引:227
作者
Choi, Yuri [1 ,2 ]
Bae, Hee Son [3 ,4 ]
Seo, Eunyong [1 ,2 ]
Jang, Seonwan [3 ,4 ]
Park, Kang Hyun [3 ,4 ]
Kim, Byeong-Su [1 ,2 ]
机构
[1] UNIST, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea
[2] UNIST, Sch NanoBiosci & Chem Engn, Ulsan 689798, South Korea
[3] Pusan Natl Univ, Dept Chem, Pusan 609735, South Korea
[4] Pusan Natl Univ, Chem Inst Funct Mat, Pusan 609735, South Korea
基金
新加坡国家研究基金会;
关键词
ELECTROCATALYTIC ACTIVITY; OXYGEN REDUCTION; GRAPHITE OXIDE; FILMS; SHEETS;
D O I
10.1039/c1jm12477c
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We demonstrate a simple, one-step synthesis of hybrid gold nanoparticle-graphene oxide nanosheets (Au-GO) through electrostatic self-assembly. This method affords a facile means of controlling the effective concentration of the active Au nanoparticles on the graphene sheets, but also offers the necessary stability of the resulting Au-GO nanostructure for catalytic transformation. Furthermore, this hybrid Au-GO is successfully employed in the catalytic reduction of a series of nitroarenes with high catalytic activity. Through careful investigation of the catalyst, we find the synergistic catalytic effect of Au nanoparticles and GO, further highlighting the significance of hybrid Au-GO nanostructure. Considering the wide potential applications of a two-dimensional graphene sheet as a host material for a variety of nanoparticles, the approach developed here may lead to new possibilities for the fabrication of hybrid nanoparticle-graphene nanosheet structures endowed with multiple functionalities.
引用
收藏
页码:15431 / 15436
页数:6
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